An investigation of strengthening by spherical coherent G. P. Zones

@article{Harkness1970AnIO,
  title={An investigation of strengthening by spherical coherent G. P. Zones},
  author={Samuel D. Harkness and John J. Hren},
  journal={Metallurgical Transactions},
  year={1970},
  volume={1},
  pages={43-49}
}
Increases in the critical resolved shear stress of Al-Zn single crystals were measured at 77°C as a function of the volume fraction and average size of the Guinier-Preston (G.P.) zone population. Zone volume fractions ranging from 1.45 to 13 pct were studied which included average zone sizes of from 8 to 90Å. The G.P. zone sizes were determined by an X-ray small angle scattering technique developed by Harknesset al. The increase in the critical resolved shear stress was shown to be determined… CONTINUE READING

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